Title:
LIGHT AND STRONG PIPE USING TRUSS STRUCTURE
Document Type and Number:
Japanese Patent JP2004069043
Kind Code:
A
Abstract:
To provide a structural member of a wide application range achieving strength and light weight which have not been achieved in conventional pipes.
This pipe is formed by continuous casting, welding, or extrusion of metal, light alloy, or synthetic resin. Reinforcements are provided in the form of plus at a center of a round pipe, minus at the center of the round pipe, plus at the center of an angular pipe, or minus at the center of the angular pipe.
Inventors:
HIRAYAMA RYOICHI
Application Number:
JP2002267415A
Publication Date:
March 04, 2004
Filing Date:
August 08, 2002
Export Citation:
Assignee:
HIRAYAMA ENGINEERING KK
International Classes:
F16L9/04; F16L9/12; (IPC1-7): F16L9/04; F16L9/12